Site

State

PM AQI* (ug/m3)

Portola

CA

40

Albany

NY

36

Visalia - N. Church Street

CA

31

State College

PA

29

Salmon PM2.5

ID

29

Pinehurst

ID

29

Porterville-NFS

CA

29

Harrisburg

PA

29

Altoona

PA

29

Carlisle

PA

28